| Summary: | Knowledge of bituminous creep modulus is very important to.fully characterize a
premix. Conventional methods to determine it involve elaborate laboratory procedure
requiring specialized equipment and trained personnel. Theoretical methods to
calculate dynamic creep modulus (E*) have been available but very little comparison
between theoretical and laboratory results are available in the literature. A study was
carried out to determine the laboratory E* values of a set of field cores. The same
cores were then analyzed for their physical properties such as penetration, viscosity
and air-void content which were used as input for the determination of the theoretical
E*. A comparison was then made between the laboratory and theoretical E* values in
graphical plots which showed agreement within a factor two. In many analysis, this is
close enough given the inherent variability within a premix. Thus, in cases where
laboratory E* could not be performed, a quick estimate could be obtained using the
method shown in this study
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